What apps do protesters use in the U.S.? Discovering Signal

Signal is an encrypted messaging app very similar to WhatsApp which has seen an increase in users in recent days following protests for the killing of George Floyd.

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The app has been around since 2015, but has always been “obscured” by giants like WhatsApp and Facebook Messenger. Signal is available on both Android and iOS phones and on the desktop and is recommended by privacy and security activists (like Edward Snowden) because of the high level of security it can guarantee.

Signal allows you to send text messages, make calls, transfer files and documents and share your location with end-to-end encryption. This means that no one, not even the app itself, can record what is being said. Unlike Facebook Messenger, for example, Signal does not collect information about its users to be used for advertising. Furthermore, it does not allow governments or law enforcement agencies to access their messages.

Signal is free, but you need to verify the phone number in order to use it: as is the case with WhatsApp, users must enter a code sent to their phones to activate their account. Once activated, the account requires a 4-digit PIN code to make it even safer.

This week, in response to the protests, Signal announced the launch of a new tool that “blurs” the faces during a video call thanks to artificial intelligence.